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Mon, 15 Dec 2025 18:10:01 -0800 From: Nicolin Chen To: CC: , , , , , , , , , , , Subject: [PATCH v7 2/7] iommu/arm-smmu-v3: Add an inline arm_smmu_domain_free() Date: Mon, 15 Dec 2025 18:09:31 -0800 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099DC:EE_|CH2PR12MB9459:EE_ X-MS-Office365-Filtering-Correlation-Id: 351f8eaa-58ff-4874-e351-08de3c483fc3 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|1800799024|82310400026|36860700013; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?xavuA6sLd5r6AErCZQDNkUuf+PCwsnPaOq8DQXNqmggT2DTr3Esb+DSjSxCT?= =?us-ascii?Q?tR4Tucu9micGEVK2xHMiRfsqcCVdxqNNE7CWndW+DY2P5pWLMsS+UaFKbjvD?= =?us-ascii?Q?LmMnscQVRbgz5uvaD5Doj7wngvnOpz7G8F15NDjoG6eUGDxbWAf42x/W3n16?= =?us-ascii?Q?gmhGT3ktudu8JuyVbtQgF65+Rq9x2/I75fAXNj0VX118goczxplGchMzbKig?= =?us-ascii?Q?J7fMQg8fKBp9t/NIGfh5aJlmVUsIZd1IJGHL1yrCAdhGoGEtLXSMo+cQmaMS?= =?us-ascii?Q?kYH0pWjXLbZN6BahZkujM4P/SL7WnO5Isp3KpFKWtVZeIziMDgG1mNuliJXK?= =?us-ascii?Q?jo6aQKKDHNUBopQ8ZcAXFLUj8U5E6vcQwHLDT716B4tA9W1Nelu2hku1Qixs?= =?us-ascii?Q?i8epeIj929MXwumWUfm11+aB9T8uOledY8x4AEW0IizTVlCTJOvDJBXB+xwG?= =?us-ascii?Q?2Gg3808JQsvtEPOh6sjDrZePKeMPGZ1aHRmkvTEtGAcnpckBX6OI8HHylAuW?= =?us-ascii?Q?RImofjPfe2ymuDRUAoiIPdkHbcnCZWL0O6fD2Gl4Yf95bYmv5BI88HaaWV3p?= =?us-ascii?Q?WF8uqX77SsHCP2QAXBzQ1GcVPpztzAcQZ1468/PbYGFhb+z3txmFg6rWUsPP?= =?us-ascii?Q?472GHm63fS8/vqUNChheKRKMC/vOnxl/E7f/r39TOrdMBy/tT3ORdrkz8ta/?= =?us-ascii?Q?Y5xKFU94sSJScnjummwgJKnuuMjRUKbgLe13oqCr1vWQ/pX+4iMjrmb+j7BW?= =?us-ascii?Q?j7Sj/aNm1KMbPh5HNUttfeCa7KModsLJ4BWnA9V2E2hmFfs/Ewf96/qGWder?= =?us-ascii?Q?4kGDEgNWmHyCwIeH3+QfEH57kMbf5J8OnAJCG6SAkh3H0URDOgzF+anc43Rp?= =?us-ascii?Q?SsOr1Udcp+Ml0k4eeuE/chZpNXSqhRHNObowZiqkXq2fv0NKE3VR3+4V9mRJ?= =?us-ascii?Q?9AbwoIXyBKmPIU4rzp47SnPbM2ufyfLo7qDzgBoWv6NlI5vFHblJ8Cc9tQda?= =?us-ascii?Q?CzvhXW7gozYgxelXmO/kz2o4CKsIxW66993Orfvvx0fM8/bIDSyltgZD3vMB?= =?us-ascii?Q?GolFfq50IvbEoAUVRO7O9rGF9SxrPVApj6zE+yUVpYBIWWa2ZqiiPb0Hlf+7?= =?us-ascii?Q?tig2LnVlrrv9e5HjuOrMGnBg6hMnfQ0bC4Z5IM2vv4wULXOXE2CUK91YxOR2?= =?us-ascii?Q?PQ285n3+IRvcX/7jHv3O14Fssx5WUinjnPd8Bx8Y11C2quxc2SpQ/02Httrc?= =?us-ascii?Q?Ja7wPKbFlCtUVR+XhPNAaJdvZBwEVagbmxV/IZVC5TLTeIaGRUWIPdnK6e+w?= =?us-ascii?Q?OukeX0/PqqEBsGy1U10biNWo7T8WidhkBuzPazdKPNDORoaPR4E1+VeNAup7?= =?us-ascii?Q?toPIux5q6LIRbmBRTBVBZKPm2vOqeMyF/DI7RfyS28IokhA1IajiIQDaRW70?= =?us-ascii?Q?OrAeoFihjv1awmVZS5F16eXwWfs8L0zasazut/42g9ndwhuoFtVyPnShsEIx?= =?us-ascii?Q?xCSk2dyDvoD3NGAur2EDxfgA6SwhFqNQHc5MDdmbfiVRuMQD5zaimmYxdtRW?= =?us-ascii?Q?YN9hf0NEqpNCISeX+vk=3D?= X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(7416014)(376014)(1800799024)(82310400026)(36860700013);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Dec 2025 02:10:13.6702 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 351f8eaa-58ff-4874-e351-08de3c483fc3 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099DC.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB9459 Content-Type: text/plain; charset="utf-8" There will be a bit more things to free than smmu_domain itself. So keep a simple inline function in the header to share aross files. Suggested-by: Jason Gunthorpe Reviewed-by: Jason Gunthorpe Acked-by: Balbir Singh Signed-off-by: Nicolin Chen --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 5 +++++ drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c | 5 +++-- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 4 ++-- 3 files changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/ar= m/arm-smmu-v3/arm-smmu-v3.h index 5c0b38595d20..96a23ca633cb 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h @@ -954,6 +954,11 @@ extern struct mutex arm_smmu_asid_lock; =20 struct arm_smmu_domain *arm_smmu_domain_alloc(void); =20 +static inline void arm_smmu_domain_free(struct arm_smmu_domain *smmu_domai= n) +{ + kfree(smmu_domain); +} + void arm_smmu_clear_cd(struct arm_smmu_master *master, ioasid_t ssid); struct arm_smmu_cd *arm_smmu_get_cd_ptr(struct arm_smmu_master *master, u32 ssid); diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c b/drivers/iomm= u/arm/arm-smmu-v3/arm-smmu-v3-sva.c index 6097f1f540d8..440ad8cc07de 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c @@ -197,7 +197,8 @@ static void arm_smmu_mm_release(struct mmu_notifier *mn= , struct mm_struct *mm) =20 static void arm_smmu_mmu_notifier_free(struct mmu_notifier *mn) { - kfree(container_of(mn, struct arm_smmu_domain, mmu_notifier)); + arm_smmu_domain_free( + container_of(mn, struct arm_smmu_domain, mmu_notifier)); } =20 static const struct mmu_notifier_ops arm_smmu_mmu_notifier_ops =3D { @@ -365,6 +366,6 @@ struct iommu_domain *arm_smmu_sva_domain_alloc(struct d= evice *dev, err_asid: xa_erase(&arm_smmu_asid_xa, smmu_domain->cd.asid); err_free: - kfree(smmu_domain); + arm_smmu_domain_free(smmu_domain); return ERR_PTR(ret); } diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/ar= m/arm-smmu-v3/arm-smmu-v3.c index 9d9f24a08062..e9759e8af0c0 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2492,7 +2492,7 @@ static void arm_smmu_domain_free_paging(struct iommu_= domain *domain) ida_free(&smmu->vmid_map, cfg->vmid); } =20 - kfree(smmu_domain); + arm_smmu_domain_free(smmu_domain); } =20 static int arm_smmu_domain_finalise_s1(struct arm_smmu_device *smmu, @@ -3359,7 +3359,7 @@ arm_smmu_domain_alloc_paging_flags(struct device *dev= , u32 flags, return &smmu_domain->domain; =20 err_free: - kfree(smmu_domain); + arm_smmu_domain_free(smmu_domain); return ERR_PTR(ret); } =20 --=20 2.43.0